<template>
    <div id="player">
        <!-- 歌曲信息模块 -->
        <div ref="rc" id="player-content1">
            <!-- 歌曲名 -->
            <div class="music-name">{{ data.musicName }}</div>
            <!-- 歌手名 -->
            <div class="artist-name">{{ data.author }}</div>
            <!-- 歌曲时间 -->
            <div class="time">
                <!-- 当前播放的时间 -->
                <div class="current-time"></div>
                <!-- 歌曲总时长 -->
                <div class="total-time"></div>
            </div>
            <!-- 进度条 -->
            <div id="s-area">
                <!-- 鼠标移动到进度条上，显示的时间信息 -->
                <div id="ins-time"></div>
                <!-- 鼠标移动到进度条上，进度条变暗部分-->
                <div id="s-hover"></div>
                <!-- 表示当前歌曲播放进度的蓝色进度条 -->
                <div id="seek-bar"></div>
            </div>
        </div>

        <!-- 控制模块 -->
        <div id="player-content2">
            <!-- 左侧歌曲封面旋转模块 -->
            <div ref="mi" class="music-imgs active">
                <!-- 封面图 -->
                <div ref="im" class="img"></div>
            </div>
            <!-- 右侧歌曲操作模块 -->
            <div class="player-controls">
                <!-- 上一首按钮 -->
                <div class="btn prev iconfont" @click="last"> &#xeb06;</div>
                <!-- 暂停/播放 按钮 -->


                <div class="btn play-pause icon-bofang iconfont" @click="playPause"></div>
                <!-- 下一首按钮 -->
                <div class="btn next iconfont" @click="next">&#xeb07;</div>
            </div>
        </div>
        <audio id="aud" ref="player" v-bind:src=data.musicUrl class="m_mp3"></audio>


    </div>

</template>
<script>
import { data } from '@/play/data'

export default {
    data() {
        return {
            data
        }
    },

    methods: {
        // .removeClass('active')
        playPause() {
            if (data.isPlay == false) {
                this.$refs.player.load();     //加载
                this.$refs.player.play();     // 播放
                data.isPlay = true            //播放状态的变换

                this.$refs.rc.style.top = '-85px';  //歌曲信息的框弹出

            } else {
                this.$refs.player.pause(); // 暂停
                data.isPlay = false
                this.$refs.rc.style.top = '0px';
                this.$refs.player.load();
            }
        },
        next() {
            var index = data.myList.findIndex(item => item.musicId === data.musicId)
            this.$refs.rc.style.top = '0px';
            this.$refs.player.pause();
            console.log(index)
            if(index==data.num){
                return
            }
            data.musicUrl=data.myList[index+1].musicUrl     //将音乐信息存到全局变量data里
            data.picUrl=data.myList[index+1].picUrl
            data.musicId=data.myList[index+1].musicId
            data.musicName=data.myList[index+1].musicName
            data.author=data.myList[index+1].author
            
            this.$refs.player.load();
        },
        last() {
            var index = data.myList.findIndex(item => item.musicId === data.musicId)
            this.$refs.rc.style.top = '0px';
            this.$refs.player.pause();
            console.log(index)
            if(index==0){
                return
            }
            data.musicUrl=data.myList[index-1].musicUrl     //将音乐信息存到全局变量data里
            data.picUrl=data.myList[index-1].picUrl
            data.musicId=data.myList[index-1].musicId
            data.musicName=data.myList[index-1].musicName
            data.author=data.myList[index-1].author
            
            this.$refs.player.load();
        }


    },
    watch: {
        //监听musicId，判断是否换歌，换了就暂停
        'data.musicId'(newName, oldName) {
            console.log(oldName + "   " + newName)

            data.isPlay = false
            this.$refs.rc.style.top = '0px';
            this.$refs.player.pause();
            this.$refs.player.load();







            // this.$refs.player.pause();
            // this.$refs.rc.style.top = '0px';
            // data.isPlay = true
            // this.$refs.player.src=data.musicUrl;
            // console.log(this.$refs.player.src)
            // this.$refs.rc.style.top = '0px';
            // this.$refs.player.load();

            // console.log(newName + "  " + oldName)
            // this.$refs.rc.style.top = '-85px';
            // data.isPlay = true
            // this.$refs.player.play();     // 播放
        }
    }
}
</script>


<style scoped>
@import '@/components/font/iconfont.css';

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

#player {
    position: relative;
    top: 30px;
    left: 200px;
}

/* 歌曲信息模块 */
#player-content1 {
    position: absolute;
    top: 0px;
    left: 15px;
    width: 320px;
    height: 90px;
    padding: 0 20px 0 130px;
    background: rgb(209, 226, 245);
    border-top-left-radius: 10px;
    border-top-right-radius: 10px;
    /* transition过渡动画：设置top属性过渡，过渡时间0.3s,速度曲线为ease(逐渐变慢) */
    transition: top 0.3s ease;

}

#player-content1.active {
    top: -85px;
}

.music-name,
.artist-name {
    height: 20px;
    margin-top: 5px;
    font-size: 14px;
}

.artist-name {
    font-size: 12px;
    color: #656565
}

.time {
    font-size: 12px;
    height: 15px;
    margin: 5px 0;
}

.current-time {
    float: left;
}

.total-time {
    float: right;
}

.current-time,
.total-time {
    color: transparent;
    font-size: 11px;
    background-color: #e8f5ff;
    border-radius: 10px;
    transition: 0.3s ease all;
}

.time.active .current-time,
.time.active .total-time {
    color: rgb(54, 127, 196);
    background-color: transparent;
}


#s-area,
#seek-bar {
    position: relative;
    height: 4px;
    border-radius: 4px;
}

#s-area {
    background-color: #e8f5ff;
    cursor: pointer;
}

#ins-time {
    position: absolute;
    top: -29px;
    color: #fff;
    font-size: 12px;
    white-space: pre;
    padding: 5px 6px;
    border-radius: 4px;
    display: none;
}

#s-hover {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    opacity: 0.2;
    z-index: 2;
}

#ins-time,
#s-hover {
    background-color: #4b4d5c;
}

#seek-bar {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    width: 0;
    background-color: rgb(54, 127, 196);
    transition: 0.2s ease width;
}

#player-content2 {
    position: relative;
    width: 350px;
    height: 90px;

    background: #fff;
    border-radius: 20px;
    box-shadow: 0 30px 80px #656565;
}

/* 左侧封面图模块 */
.music-imgs {
    position: absolute;
    top: -40px;
    width: 100px;
    height: 100px;
    margin-left: 30px;
    -webkit-transform: rotateZ(0);
    transform: rotateZ(0);
    transition: 0.3s ease all;
    box-shadow: 0 0 0 10px #fff;
    border-radius: 50%;
    overflow: hidden;
}

/* 左侧封面图模块添加了active类名 */
.music-imgs.active {
    top: -50px;
    box-shadow: 0 0 0 4px #e8f5ff, 0 30px 50px -15px #afb7c1;
}

.music-imgs:before {
    content: '';
    position: absolute;
    top: 50%;
    right: 0;
    left: 0;
    width: 20px;
    height: 20px;
    margin: -10px auto 0 auto;
    background-color: #d6dee7;
    border-radius: 50%;
    box-shadow: inset 0 0 0 2px #fff;
    z-index: 2;
}

/* 左侧封面图模块下的 图片div */
.music-imgs .img {
    display: block;
    position: absolute;
    width: 100%;
    height: 100%;
    background: url('../assets/img/bg.jpg');
}

div.img {
    margin: 5px;
    border: 1px solid #ccc;
    float: left;
    left: -6px;
    top: -6px;
}

/* 封面图模块添加了active类名后，图片div的样式添加 */
.music-imgs.active .img {
    z-index: 1;
    -webkit-animation: rotateAlbumArt 3s linear 0s infinite forwards;
    animation: rotateAlbumArt 3s linear 0s infinite forwards;
}

@-webkit-keyframes rotateAlbumArt {
    0% {
        -webkit-transform: rotateZ(0);
        transform: rotateZ(0);
    }

    100% {
        -webkit-transform: rotateZ(360deg);
        transform: rotateZ(360deg);
    }
}

@keyframes rotateAlbumArt {
    0% {
        -webkit-transform: rotateZ(0);
        transform: rotateZ(0);
    }

    100% {
        -webkit-transform: rotateZ(360deg);
        transform: rotateZ(360deg);
    }
}

#buffer-box {
    position: absolute;
    top: 50%;
    right: 0;
    left: 0;
    height: 13px;
    color: #1f1f1f;
    font-size: 13px;
    font-family: Helvetica;
    text-align: center;
    font-weight: bold;
    line-height: 1;
    padding: 6px;
    margin: -12px auto 0 auto;
    background-color: rgba(255, 255, 255, 0.19);
    opacity: 0;
    z-index: 2;
}

.music-imgs .img,
#buffer-box {
    transition: 0.1s linear all;
}

.music-imgs.buffering .img {
    opacity: 0.25;
}

.music-imgs.buffering .img.active {
    opacity: 0.8;
    filter: blur(2px);
    -webkit-filter: blur(2px);
}

.music-imgs.buffering #buffer-box {
    opacity: 1;
}

.player-controls {
    position: absolute;
    top: 20px;
    left: 150px;
}

.player-controls .btn {
    float: left;
    width: 60px;
    height: 60px;
    line-height: 60px;
    font-size: 24px;
    color: #D6DEE7;
}
</style>

